Jaiminīya Upaniṣad Brāhmaṇa 3.3.3

3.3.3

ayam eva prāṇa ukthasyātmā
sa ya evam etam ukthasyātmānam ātman pratiṣṭhitaṃ veda sa hāmuṣmiṁl loke sāṅgas satanus [sarvas] sambhavati /

This breath alone is the self of the uktha.
He who knows this self of the uktha thus established in the self, comes into being in yonder world with [all his] limbs, with his body, [complete].